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The development of radiographic systems for the grading of osteoarthritis requires knowledge of the reproducibility of their individual component features. This paper reports the reproducibility, both within and between observers, for five commonly used radiographic features of osteoarthritis in the tibiofemoral and patellofemoral compartments of the knee joint. The results suggest that assessments of joint space narrowing, osteophyte, and bony contour in the tibiofemoral compartments are more reproducible than those of sclerosis and cyst. Patellofemoral assessments, with the exception of osteophyte, are considerably less reproducible between observers than tibiofemoral assessments.

Original publication

DOI

10.1136/ard.51.1.80

Type

Journal article

Journal

Annals of the rheumatic diseases

Publication Date

01/1992

Volume

51

Pages

80 - 82

Addresses

Department of Medicine, Bristol Royal Infirmary, United Kingdom.

Keywords

Knee Joint, Humans, Osteoarthritis, Observer Variation, Reproducibility of Results, Aged, Female, Male